Houston drowned in the bathtub of her Los Angeles hotel suite on the eve of the Grammy Awards last year, and her mother Cissy Houston has penned a book, "Remembering Whitney," detailing her side of the story and her memories of the superstar.

But Bobbi Kristina, Houston's only child from her marriage to R&B singer Bobby Brown, has spoken out to publicly distance herself from her grandmother and urge fans not to purchase the book.

She writes, "Anything concerning my grandmother's book, I and @nickgordon of course personally have nothing to do with... I haven't read [it] and won'... I find it to be disrespectful to my mother and me being her daughter won't tolerate it [sic]."